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公开(公告)号：KR1020130133463A
公开(公告)日：2013-12-09
申请号：KR1020120056730
申请日：2012-05-29
Applicant: 아주대학교산학협력단
CPC classification number: H04W74/08 , H04B7/18513 , H04W28/26
Abstract: The present invention relates to a data transmission method using a random access scheme in a communication network and, more specifically, to a method and an apparatus for performing random access in a communication network using a slot reservation scheme of a satellite network controlling the number of replicated data packets. In order to achieve the above objective, the data transmission method using a random access scheme according to one embodiment of the present invention comprises the following steps: receiving a communication channel for one frame period and identifying the occupancy of a slot; selecting at least one empty slot, replicating data packets in each empty slot, and transmitting the replicated data packets; distinguishing the slots, which receive the data packet which does not collide with other data packets, from the replicated data packets; and determining a reservation slot among the distinguished slots. [Reference numerals] (AA) Start;(BB) End;(S210) Receive a satellite channel for one frame period and identify the occupancy of slots;(S220) Select at least one empty slot, replicate data packets in each empty slot, and transmit the replicated data packets;(S230) Distinguish the slots, which receive the data packet which does not collide with other packets, from the replicated data packets;(S240) Determine a reservation slot among the distinguished slots
Abstract translation: 本发明涉及一种在通信网络中使用随机接入方式的数据传输方法，更具体地，涉及一种使用卫星网络的时隙预留方案在通信网络中执行随机接入的方法和装置， 复制数据包。 为了实现上述目的，根据本发明的一个实施例的使用随机接入方案的数据传输方法包括以下步骤：接收一帧周期的通信信道并识别时隙的占用; 选择至少一个空时隙，在每个空时隙中复制数据分组，并发送所述复制的数据分组; 区分从复制的数据分组接收不与其他数据分组冲突的数据分组的时隙; 以及确定所识别的时隙中的预留时隙。 （AA）开始;（BB）结束;（S210）接收一帧周期的卫星信道并识别时隙的占用;（S220）选择至少一个空时隙，在每个空时隙中复制数据分组， 发送复制数据分组;（S230）区分从复制数据分组接收不与其他分组冲突的数据分组的时隙;（S240）确定各识别时隙之间的预留时隙
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公开(公告)号：KR1020130118579A
公开(公告)日：2013-10-30
申请号：KR1020120041549
申请日：2012-04-20
Applicant: 아주대학교산학협력단
CPC classification number: H04B7/18565 , H04L63/062
Abstract: PURPOSE: A method and an apparatus for communicating with a satellite based on physical layer network coding using data encryption and decryption are provided to maximize the availability in fields such as personal or defense communications which need point-to-point communication. CONSTITUTION: A satellite terminal (120) includes a security key storage unit (121), an overlapping signal receiver (122), and a data recovery unit (123). The security key storage unit receives a security key from a security station within a satellite network and stores the security key shared with the security station. The overlapping signal receiver receives an overlapping signal, in which data transmitted via uplink from a base station (BS) or a first satellite terminal within the satellite network and a security key transmitted via uplink from the security station are analog-coded, via downlink from a satellite. The data recovery unit extracts received data corresponding to the transmitted data from the overlapping signal by using the store security key. [Reference numerals] (121) Security key storage unit; (122) Overlapping signal receiver; (123) Data recovery unit
Abstract translation: 目的：提供一种基于使用数据加密和解密的物理层网络编码与卫星通信的方法和装置，以最大化需要点对点通信的个人或防御通信等领域的可用性。 构成：卫星终端（120）包括安全密钥存储单元（121），重叠信号接收器（122）和数据恢复单元（123）。 安全密钥存储单元从卫星网络内的安全站接收安全密钥，并存储与安全站共享的安全密钥。 重叠信号接收机接收重叠信号，其中通过上行链路从卫星网络中的基站（BS）或第一卫星终端发送的数据和经由上行链路从安全站发送的安全密钥经由下行链路被模拟编码 一颗卫星。 数据恢复单元通过使用存储安全密钥从重叠信号中提取与发送的数据相对应的接收数据。 （附图标记）（121）安全密钥存储单元; （122）重叠信号接收机; （123）数据恢复单元
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公开(公告)号：KR101270008B1
公开(公告)日：2013-05-31
申请号：KR1020110130766
申请日：2011-12-08
Applicant: 아주대학교산학협력단
IPC: H04B7/185
CPC classification number: H04B7/18523 , H04H20/33 , H04H20/51
Abstract: PURPOSE: An analog coding based satellite communication method and a device thereof are provided to execute many-to-many satellite communication by using an analog network coding method. CONSTITUTION: A transmission data reception unit(510) receives transmission data from a feeder. The feeder directly transmits the transmission data to a satellite. An overlapped signal reception unit(520) receives reception data corresponding to the transmission data from an analog network coded overlapped signal. An extraction unit(530) extracts the reception data from the overlapped signal by using the received transmission data and the overlapped signal. [Reference numerals] (510) Transmission data reception unit; (520) Overlapped signal reception unit; (530) Extraction unit
Abstract translation: 目的：提供一种基于模拟编码的卫星通信方法及其装置，通过使用模拟网络编码方法执行多对多卫星通信。 构成：发送数据接收部（510）从馈线接收发送数据。 馈线将传输数据直接发送到卫星。 重叠信号接收单元（520）从模拟网络编码重叠信号接收与发送数据相对应的接收数据。 提取单元（530）通过使用接收到的发送数据和重叠信号从重叠信号中提取接收数据。 （附图标记）（510）发送数据接收部; （520）重叠信号接收单元; （530）提取单元
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公开(公告)号：KR101219467B1
公开(公告)日：2013-01-11
申请号：KR1020110144427
申请日：2011-12-28
Applicant: 아주대학교산학협력단
IPC: G01S19/01
Abstract: PURPOSE: A ground reference station based space air node relay positioning system is provided to reduce dependency on GPS(Global Positioning System) and to have accurate positioning capability of a weapon system in case of GPS signal distortion. CONSTITUTION: A ground positioning system comprises ground reference stations(111,112,113), satellite air relaying stations(121,122,123), and a receiving station(130). The multiple ground reference stations synchronize and transmit intrinsic signals to inform positions. The multiple satellite air relaying stations reiteratively transfer the signals received from the ground reference stations to the receiving station. The receiving station uses TDOA(Time Difference of Arrival) of the reiterated signals sent from the satellite air relaying stations to distinguish the positions of the satellite air relaying stations. [Reference numerals] (111,112,113) Reference station; (121) Relay station; (130) Receiving station; (140) Center station
Abstract translation: 目的：提供基于地面参考站的空间节点继电器定位系统，以减少对GPS（全球定位系统）的依赖，并在GPS信号失真的情况下具有武器系统的准确定位能力。 构成：地面定位系统包括地面参考站（111,112,113），卫星空中中继站（121,122,123）和接收站（130）。 多个地面参考站同步和传输固有信号以通知位置。 多个卫星中继站将从地面基准站接收的信号重复地传送到接收站。 接收站使用从卫星中继站发送的重复信号的TDOA（到达时间差）来区分卫星中继站的位置。 [参考号]（111,112,113）参考站; （121）中继站; （130）接收站; （140）中心站
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Patent Agency Ranking105.发明公开직교 주파수 분할 다중 접속 기반의 무선통신시스템에서 항 재밍을 위한 맥 프레임 구조를 이용하여 통신하는 기지국, 통신방법 및 그 시스템 有权基于OFDMA的无线通信系统中的抗干扰的MAC帧结构，使用它的通信方法和系统
公开(公告)号：KR1020120011402A
公开(公告)日：2012-02-08
申请号：KR1020100073159
申请日：2010-07-29
Applicant: 아주대학교산학협력단
IPC: H04L27/26
CPC classification number: H04L27/26
Abstract: PURPOSE: A base station, a communicating method, and a system thereof using a MAC frame structure for anti-jamming in a wireless communication system based on orthogonal frequency division multiple access are provided to effectively correspond to the change of a hoping channel using an indicator for informing a hoping channel. CONSTITUTION: A base station(100) comprises a transceiver(10) for transmitting and receiving data, a memory(20), and a processor(30). The control information and program executive instruction are stored in a memory. The processor comprises a CIHS generating unit(31), an indicator generating unit(33), and an indicator changing unit(35). The CIHS generating unit hops the control information stored in the memory in a down-link frame. The indicator generating unit is used in order to inform the CIHS information.
Abstract translation: 目的：提供一种使用基于正交频分多址的无线通信系统中的用于抗干扰的MAC帧结构的基站，通信方法及其系统，以有效地对应于使用指示符的希望信道的改变 用于通知希望通道。 构成：基站（100）包括用于发送和接收数据的收发器（10），存储器（20）和处理器（30）。 控制信息和程序执行指令存储在存储器中。 处理器包括CIHS生成单元（31），指示器生成单元（33）和指示器改变单元（35）。 CIHS生成单元以下行链接帧跳过存储在存储器中的控制信息。 使用指示器生成单元来通知CIHS信息。
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公开(公告)号：KR101082480B1
公开(公告)日：2011-11-11
申请号：KR1020090131431
申请日：2009-12-28
Applicant: 아주대학교산학협력단
Abstract: 환경속성정보를이용한데이터접근제어시스템및 이를이용하는데이터접근제어방법이개시된다. 보다상세하게는본 발명은, 데이터접근허가를위한인증을요청하는사용자장치부와, 사용자장치부가속하는환경속성으로부터환경속성정보값을추출하여사용자장치부로제공하고, 미리결정된환경속성의환경속성정보값을생성하는환경속성제어부및 주기적으로갱신되며사용자장치부와공유하는세션키와환경속성제어부에서생성된상기미리결정된환경속성정보값을이용하여사용자장치부의데이터접근허가를인증하는인증서버부를포함하는데이터접근제어시스템및 데이터접근제어방법에관한것이다.
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公开(公告)号：KR1020110106125A
公开(公告)日：2011-09-28
申请号：KR1020100025367
申请日：2010-03-22
Applicant: 아주대학교산학협력단
Abstract: 본 발명은 무선 통신망을 지속적으로 운용하는 시스템 및 그 방법에 관한 것이다. 본 발명은 무선 근거리 통신망을 기반으로 하는 무선 통신 시스템에서 물리 계층과 데이터링크 계층에서의 재밍 공격을 탐지하고 그 위험의 정도에 따라 경고하는 무선 통신망 운용 시스템 및 그 방법을 제공한다. 특히, 본 발명은 재밍으로 인하여 사용중인 채널의 운용이 불가할 경우 채널 변경 또는 채널 호핑을 통해 재밍을 회피함으로써 통신망을 지속적으로 유지할 수 있는 무선 통신망 운용 시스템 및 그 방법을 제공한다. 본 발명에 따르면, 능동적으로 불법 단말 및 비인가 무선 액세스 포인트를 차단하면서 채널 변경이나 채널 호핑을 통해 지속적인 통신망과 항재밍 성능을 제공할 수 있다.
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公开(公告)号：KR101016009B1
公开(公告)日：2011-02-23
申请号：KR1020080113694
申请日：2008-11-14
Applicant: 아주대학교산학협력단
Abstract: 세션키인 데이터 암호화키를 이용하여 데이터를 암호화하는 단계와 암호화된 데이터가 복호화될 수 있는 지리적 위치를 결정하는 단계와 결정된 위치 정보에 기초하여, 함수값인 위치키를 생성하는 단계와 생성된 위치키 및 데이터 암호화키를 논리 연산한 후, 데이터 사용자의 공개키로써 암호화하여 암호블록을 생성하는 단계와 생성된 암호블록 및 암호화된 데이터를 데이터 사용자에게 제공하는 단계를 포함하는 데이터의 암호화 방법 및 데이터 공급자로부터 제공되는 암호블록 및 암호화된 데이터를 수신하는 단계와 수신된 암호블록을 데이터 사용자의 개인키를 이용하여 복호화하는 단계와 복호화된 암호블록에 포함된 데이터 암호화키를 복원하기 위하여 데이터 사용자의 위치 정보를 획득하는 단계와 획득한 위치 정보에 기초하여, 함수값인 위치키를 생성하는 단계와 생성된 위치키 및 복호화된 암호블록을 논리 연산하여 데이터 암호화키를 복원하는 단계와 복원된 데이터 암호화키를 이용하여 수신된 암호화된 데이터를 복호화하는 단계를 포함하는 데이터의 복호화 방법이 개시되어 있다.
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公开(公告)号：KR1020100054512A
公开(公告)日：2010-05-25
申请号：KR1020080113469
申请日：2008-11-14
Applicant: 아주대학교산학협력단
CPC classification number: H04B7/18536 , H04B7/2621
Abstract: PURPOSE: A multiple connection method of a satellite network using a terrestrial network and a system thereof are provided to use insufficient satellite resources efficiently by reassigning all allocated satellite communication resources from one terminal of the terrestrial network in terminals of the terrestrial network. CONSTITUTION: The first terminal receives allocation of all satellite communication resources of the first network(210). The first network includes at least one or more second terminal within a terrestrial network. A part among the allocated satellite communication resources is allocated to the second terminal(220). Data is transceived from the second terminal(230). The data is transmitted to the third terminal of the second network through a satellite network(240).
Abstract translation: 目的：提供使用地面网络及其系统的卫星网络的多重连接方法，以便通过从地面网络的终端中的地面网络的一个终端重新分配所有分配的卫星通信资源来有效地使用不足的卫星资源。 构成：第一终端接收第一网络的所有卫星通信资源的分配（210）。 第一网络包括地面网络内的至少一个或多个第二终端。 所分配的卫星通信资源中的一部分被分配给第二终端（220）。 数据从第二终端（230）收发。 通过卫星网络（240）将数据发送到第二网络的第三终端。
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